146385091 has 2 divisors, whose sum is σ = 146385092. Its totient is φ = 146385090.

The previous prime is 146385089. The next prime is 146385097. The reversal of 146385091 is 190583641.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 146385091 - 2¹ = 146385089 is a prime.

Together with 146385089, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 146385091.

It is not a weakly prime, because it can be changed into another prime (146385097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73192545 + 73192546.

It is an arithmetic number, because the mean of its divisors is an integer number (73192546).

Almost surely, 2^146385091 is an apocalyptic number.

146385091 is a deficient number, since it is larger than the sum of its proper divisors (1).

146385091 is an equidigital number, since it uses as much as digits as its factorization.

146385091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25920, while the sum is 37.

The square root of 146385091 is about 12098.9706586965. The cubic root of 146385091 is about 527.0262929054.

The spelling of 146385091 in words is "one hundred forty-six million, three hundred eighty-five thousand, ninety-one".